11
OPERATION (cont.)
Cutting Technique:
The plasma torch (4) can be comfortably held in one hand or steadied with two hands.
Position your hand as to press the torch trigger switch (5) on the plasma torch (4). Your
hand may be positioned close to the torch head for maximum control or near the
back end for maximum heat protection. Choose the holding technique that feels
most comfortable and allows good control and movement.
•
When straight edge cutting the torch should be held at a 90° angle to the
workpiece and dragged along the cutting surface (Fig. 6). Establish the cutting arc
from the edge and drag along the workpiece. The speed at which you do this is
dependant on the workpiece thickness, current and airflow rate selected.
•
When attempting to pierce the workpiece the plasma
torch (4). should be held at a 45º angle (Fig. 7). Once
the arc is established the plasma torch (4). is then
turned to a 90º angle and continue cutting as normal.
•
Never hit workpiece with the torch, the torch and
nozzle are fragile and can easily damage.
Note:
Worn nozzle will cause cutting inaccuracies and/or arc starting problems, so
inspect the nozzle regularly. The nozzle has a perfectly round hole in the end that will
become oblong over time. As it becomes oblong the arc will distort and wear the
nozzle even more. When this occurs discard it. If the nozzle is covered with spatter,
discard or remove the spatter with cleaning file (supplied).
Controls & Indicators
On/Off Switch Is located on the rear of the Plasma Cutter (Fig. 8).
•
To turn the plasma cutter on, select the ON ( I ) position
•
To turn the plasma cutter off, select the OFF (O) position
Note:
When the On/Off Switch is in the ON position the
power indicator LED (8) will illuminate and the cooling fan will
come on.
Amperage Control Knob (9) (Fig. 9)
•
Allows you to adjust the current from 5 to 25 Amps.
•
Set the desired current for the type of metal being cut,
lower the amps for thin material, higher amps for heavy,
thicker material.
eg. 8 Amps
0-2mm
15 Amps
2-4mm
25 Amps
4-6mm
90º
90º
90º
Fig. 6
45º
Fig. 7
I / ON
0 /OFF
Fig. 8
0.2
0.4
0.6
0.8
MPa
55
5
10
25
20
15
2.55
(A)
Fig. 9
